Engineering Board Exam Reviewer · Series Circuits · medium
Two resistors in the ratio R1:R2=2:3 are connected in series across a 50 V source. What is the voltage across R2?
- 20 V
- 30 V
- 25 V
- 33.3 V
Answer
B. 30 V
Solution
In a series circuit, voltage divides in proportion to resistance: V2=50·3/2+3=30 V.
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